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        <a href="deepbelief-module.html">Package&nbsp;deepbelief</a> ::
        Module&nbsp;gaussianrbm
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<h1 class="epydoc">Source Code for <a href="deepbelief.gaussianrbm-module.html">Module deepbelief.gaussianrbm</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno">  1</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">numpy</tt> <tt class="py-keyword">as</tt> <tt class="py-name">np</tt> </tt>
<a name="L2"></a><tt class="py-lineno">  2</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-0" class="py-name" targets="Module deepbelief.abstractbm=deepbelief.abstractbm-module.html"><a title="deepbelief.abstractbm" class="py-name" href="#" onclick="return doclink('link-0', 'abstractbm', 'link-0');">abstractbm</a></tt> <tt class="py-keyword">import</tt> <tt id="link-1" class="py-name" targets="Class deepbelief.abstractbm.AbstractBM=deepbelief.abstractbm.AbstractBM-class.html"><a title="deepbelief.abstractbm.AbstractBM" class="py-name" href="#" onclick="return doclink('link-1', 'AbstractBM', 'link-1');">AbstractBM</a></tt> </tt>
<a name="L3"></a><tt class="py-lineno">  3</tt>  <tt class="py-line"> </tt>
<a name="L4"></a><tt class="py-lineno">  4</tt>  <tt class="py-line"><tt class="py-name">__license__</tt> <tt class="py-op">=</tt> <tt class="py-string">'MIT License &lt;http://www.opensource.org/licenses/mit-license.php&gt;'</tt> </tt>
<a name="L5"></a><tt class="py-lineno">  5</tt>  <tt class="py-line"><tt class="py-name">__author__</tt> <tt class="py-op">=</tt> <tt class="py-string">'Lucas Theis &lt;lucas@tuebingen.mpg.de&gt;'</tt> </tt>
<a name="L6"></a><tt class="py-lineno">  6</tt>  <tt class="py-line"><tt class="py-name">__docformat__</tt> <tt class="py-op">=</tt> <tt class="py-string">'epytext'</tt> </tt>
<a name="L7"></a><tt class="py-lineno">  7</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM"></a><div id="GaussianRBM-def"><a name="L8"></a><tt class="py-lineno">  8</tt> <a class="py-toggle" href="#" id="GaussianRBM-toggle" onclick="return toggle('GaussianRBM');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html">GaussianRBM</a><tt class="py-op">(</tt><tt class="py-base-class">AbstractBM</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="GaussianRBM-expanded"><a name="L9"></a><tt class="py-lineno">  9</tt>  <tt class="py-line">        <tt class="py-docstring">"""</tt> </tt>
<a name="L10"></a><tt class="py-lineno"> 10</tt>  <tt class="py-line"><tt class="py-docstring">        An implementation of the Gaussian RBM with continuous visible nodes.</tt> </tt>
<a name="L11"></a><tt class="py-lineno"> 11</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L12"></a><tt class="py-lineno"> 12</tt>  <tt class="py-line"><tt class="py-docstring">        References:</tt> </tt>
<a name="L13"></a><tt class="py-lineno"> 13</tt>  <tt class="py-line"><tt class="py-docstring">        Salakhutdinov, R. (2009). I{Learning Deep Generative Models.}</tt> </tt>
<a name="L14"></a><tt class="py-lineno"> 14</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L15"></a><tt class="py-lineno"> 15</tt>  <tt class="py-line"><tt class="py-docstring">        @type sigma: real</tt> </tt>
<a name="L16"></a><tt class="py-lineno"> 16</tt>  <tt class="py-line"><tt class="py-docstring">        @ivar sigma: controls the variance of conditional distribution of the </tt> </tt>
<a name="L17"></a><tt class="py-lineno"> 17</tt>  <tt class="py-line"><tt class="py-docstring">        visible units</tt> </tt>
<a name="L18"></a><tt class="py-lineno"> 18</tt>  <tt class="py-line"><tt class="py-docstring">        """</tt> </tt>
<a name="L19"></a><tt class="py-lineno"> 19</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM.__init__"></a><div id="GaussianRBM.__init__-def"><a name="L20"></a><tt class="py-lineno"> 20</tt> <a class="py-toggle" href="#" id="GaussianRBM.__init__-toggle" onclick="return toggle('GaussianRBM.__init__');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">num_visibles</tt><tt class="py-op">,</tt> <tt class="py-param">num_hiddens</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM.__init__-expanded"><a name="L21"></a><tt class="py-lineno"> 21</tt>  <tt class="py-line">                <tt id="link-2" class="py-name"><a title="deepbelief.abstractbm.AbstractBM" class="py-name" href="#" onclick="return doclink('link-2', 'AbstractBM', 'link-1');">AbstractBM</a></tt><tt class="py-op">.</tt><tt id="link-3" class="py-name" targets="Method deepbelief.abstractbm.AbstractBM.__init__()=deepbelief.abstractbm.AbstractBM-class.html#__init__,Method deepbelief.basebm.BaseBM.__init__()=deepbelief.basebm.BaseBM-class.html#__init__,Method deepbelief.dbn.DBN.__init__()=deepbelief.dbn.DBN-class.html#__init__,Method deepbelief.estimator.Estimator.__init__()=deepbelief.estimator.Estimator-class.html#__init__,Method deepbelief.gaussianrbm.GaussianRBM.__init__()=deepbelief.gaussianrbm.GaussianRBM-class.html#__init__,Method deepbelief.mixbm.MixBM.__init__()=deepbelief.mixbm.MixBM-class.html#__init__,Method deepbelief.rbm.RBM.__init__()=deepbelief.rbm.RBM-class.html#__init__,Method deepbelief.semirbm.SemiRBM.__init__()=deepbelief.semirbm.SemiRBM-class.html#__init__"><a title="deepbelief.abstractbm.AbstractBM.__init__
deepbelief.basebm.BaseBM.__init__
deepbelief.dbn.DBN.__init__
deepbelief.estimator.Estimator.__init__
deepbelief.gaussianrbm.GaussianRBM.__init__
deepbelief.mixbm.MixBM.__init__
deepbelief.rbm.RBM.__init__
deepbelief.semirbm.SemiRBM.__init__" class="py-name" href="#" onclick="return doclink('link-3', '__init__', 'link-3');">__init__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">num_visibles</tt><tt class="py-op">,</tt> <tt class="py-name">num_hiddens</tt><tt class="py-op">)</tt> </tt>
<a name="L22"></a><tt class="py-lineno"> 22</tt>  <tt class="py-line"> </tt>
<a name="L23"></a><tt class="py-lineno"> 23</tt>  <tt class="py-line">                <tt class="py-comment"># hyperparameters</tt> </tt>
<a name="L24"></a><tt class="py-lineno"> 24</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">=</tt> <tt class="py-number">1.</tt> </tt>
</div><a name="L25"></a><tt class="py-lineno"> 25</tt>  <tt class="py-line"> </tt>
<a name="L26"></a><tt class="py-lineno"> 26</tt>  <tt class="py-line"> </tt>
<a name="L27"></a><tt class="py-lineno"> 27</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM.forward"></a><div id="GaussianRBM.forward-def"><a name="L28"></a><tt class="py-lineno"> 28</tt> <a class="py-toggle" href="#" id="GaussianRBM.forward-toggle" onclick="return toggle('GaussianRBM.forward');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#forward">forward</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM.forward-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM.forward-expanded"><a name="L29"></a><tt class="py-lineno"> 29</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">X</tt> <tt class="py-keyword">is</tt> <tt class="py-name">None</tt><tt class="py-op">:</tt> </tt>
<a name="L30"></a><tt class="py-lineno"> 30</tt>  <tt class="py-line">                        <tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">X</tt> </tt>
<a name="L31"></a><tt class="py-lineno"> 31</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L32"></a><tt class="py-lineno"> 32</tt>  <tt class="py-line">                        <tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt> </tt>
<a name="L33"></a><tt class="py-lineno"> 33</tt>  <tt class="py-line">                 </tt>
<a name="L34"></a><tt class="py-lineno"> 34</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">Q</tt> <tt class="py-op">=</tt> <tt class="py-number">1.</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">exp</tt><tt class="py-op">(</tt><tt class="py-op">-</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">X</tt> <tt class="py-op">/</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L35"></a><tt class="py-lineno"> 35</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">random</tt><tt class="py-op">.</tt><tt class="py-name">rand</tt><tt class="py-op">(</tt><tt class="py-op">*</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">Q</tt><tt class="py-op">.</tt><tt class="py-name">shape</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">Q</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">astype</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">Q</tt><tt class="py-op">.</tt><tt class="py-name">dtype</tt><tt class="py-op">)</tt> </tt>
<a name="L36"></a><tt class="py-lineno"> 36</tt>  <tt class="py-line"> </tt>
<a name="L37"></a><tt class="py-lineno"> 37</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">Y</tt><tt class="py-op">.</tt><tt class="py-name">copy</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L38"></a><tt class="py-lineno"> 38</tt>  <tt class="py-line"> </tt>
<a name="L39"></a><tt class="py-lineno"> 39</tt>  <tt class="py-line"> </tt>
<a name="L40"></a><tt class="py-lineno"> 40</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM.backward"></a><div id="GaussianRBM.backward-def"><a name="L41"></a><tt class="py-lineno"> 41</tt> <a class="py-toggle" href="#" id="GaussianRBM.backward-toggle" onclick="return toggle('GaussianRBM.backward');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#backward">backward</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">Y</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM.backward-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM.backward-expanded"><a name="L42"></a><tt class="py-lineno"> 42</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">Y</tt> <tt class="py-keyword">is</tt> <tt class="py-name">None</tt><tt class="py-op">:</tt> </tt>
<a name="L43"></a><tt class="py-lineno"> 43</tt>  <tt class="py-line">                        <tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">Y</tt> </tt>
<a name="L44"></a><tt class="py-lineno"> 44</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L45"></a><tt class="py-lineno"> 45</tt>  <tt class="py-line">                        <tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt><tt class="py-op">)</tt> </tt>
<a name="L46"></a><tt class="py-lineno"> 46</tt>  <tt class="py-line"> </tt>
<a name="L47"></a><tt class="py-lineno"> 47</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">random</tt><tt class="py-op">.</tt><tt class="py-name">randn</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">shape</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">Y</tt><tt class="py-op">.</tt><tt class="py-name">shape</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L48"></a><tt class="py-lineno"> 48</tt>  <tt class="py-line"> </tt>
<a name="L49"></a><tt class="py-lineno"> 49</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">copy</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L50"></a><tt class="py-lineno"> 50</tt>  <tt class="py-line"> </tt>
<a name="L51"></a><tt class="py-lineno"> 51</tt>  <tt class="py-line"> </tt>
<a name="L52"></a><tt class="py-lineno"> 52</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._ulogprob"></a><div id="GaussianRBM._ulogprob-def"><a name="L53"></a><tt class="py-lineno"> 53</tt> <a class="py-toggle" href="#" id="GaussianRBM._ulogprob-toggle" onclick="return toggle('GaussianRBM._ulogprob');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_ulogprob">_ulogprob</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">,</tt> <tt class="py-param">Y</tt><tt class="py-op">,</tt> <tt class="py-param">all_pairs</tt><tt class="py-op">=</tt><tt class="py-name">False</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._ulogprob-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._ulogprob-expanded"><a name="L54"></a><tt class="py-lineno"> 54</tt>  <tt class="py-line">                <tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt> </tt>
<a name="L55"></a><tt class="py-lineno"> 55</tt>  <tt class="py-line">                <tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt><tt class="py-op">)</tt> </tt>
<a name="L56"></a><tt class="py-lineno"> 56</tt>  <tt class="py-line"> </tt>
<a name="L57"></a><tt class="py-lineno"> 57</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">all_pairs</tt><tt class="py-op">:</tt> </tt>
<a name="L58"></a><tt class="py-lineno"> 58</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-op">-</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">square</tt><tt class="py-op">(</tt><tt class="py-name">X</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> \ </tt>
<a name="L59"></a><tt class="py-lineno"> 59</tt>  <tt class="py-line">                                        <tt class="py-op">+</tt> <tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> <tt class="py-op">/</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> \ </tt>
<a name="L60"></a><tt class="py-lineno"> 60</tt>  <tt class="py-line">                                        <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> </tt>
<a name="L61"></a><tt class="py-lineno"> 61</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L62"></a><tt class="py-lineno"> 62</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-op">-</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">square</tt><tt class="py-op">(</tt><tt class="py-name">X</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> \ </tt>
<a name="L63"></a><tt class="py-lineno"> 63</tt>  <tt class="py-line">                                        <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">multiply</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> \ </tt>
<a name="L64"></a><tt class="py-lineno"> 64</tt>  <tt class="py-line">                                        <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> </tt>
</div><a name="L65"></a><tt class="py-lineno"> 65</tt>  <tt class="py-line"> </tt>
<a name="L66"></a><tt class="py-lineno"> 66</tt>  <tt class="py-line"> </tt>
<a name="L67"></a><tt class="py-lineno"> 67</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._ulogprob_vis"></a><div id="GaussianRBM._ulogprob_vis-def"><a name="L68"></a><tt class="py-lineno"> 68</tt> <a class="py-toggle" href="#" id="GaussianRBM._ulogprob_vis-toggle" onclick="return toggle('GaussianRBM._ulogprob_vis');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_ulogprob_vis">_ulogprob_vis</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._ulogprob_vis-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._ulogprob_vis-expanded"><a name="L69"></a><tt class="py-lineno"> 69</tt>  <tt class="py-line">                <tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt> </tt>
<a name="L70"></a><tt class="py-lineno"> 70</tt>  <tt class="py-line"> </tt>
<a name="L71"></a><tt class="py-lineno"> 71</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-op">-</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">square</tt><tt class="py-op">(</tt><tt class="py-name">X</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> \ </tt>
<a name="L72"></a><tt class="py-lineno"> 72</tt>  <tt class="py-line">                                <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">exp</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">X</tt> <tt class="py-op">/</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>
</div><a name="L73"></a><tt class="py-lineno"> 73</tt>  <tt class="py-line"> </tt>
<a name="L74"></a><tt class="py-lineno"> 74</tt>  <tt class="py-line"> </tt>
<a name="L75"></a><tt class="py-lineno"> 75</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._ulogprob_hid"></a><div id="GaussianRBM._ulogprob_hid-def"><a name="L76"></a><tt class="py-lineno"> 76</tt> <a class="py-toggle" href="#" id="GaussianRBM._ulogprob_hid-toggle" onclick="return toggle('GaussianRBM._ulogprob_hid');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_ulogprob_hid">_ulogprob_hid</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">Y</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._ulogprob_hid-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._ulogprob_hid-expanded"><a name="L77"></a><tt class="py-lineno"> 77</tt>  <tt class="py-line">                <tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt><tt class="py-op">)</tt> </tt>
<a name="L78"></a><tt class="py-lineno"> 78</tt>  <tt class="py-line"> </tt>
<a name="L79"></a><tt class="py-lineno"> 79</tt>  <tt class="py-line">                <tt class="py-name">v</tt> <tt class="py-op">=</tt> <tt class="py-name">pow</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">,</tt> <tt class="py-number">2</tt><tt class="py-op">)</tt> </tt>
<a name="L80"></a><tt class="py-lineno"> 80</tt>  <tt class="py-line">                <tt class="py-name">d</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">shape</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L81"></a><tt class="py-lineno"> 81</tt>  <tt class="py-line">                <tt class="py-name">c</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">square</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-name">v</tt> </tt>
<a name="L82"></a><tt class="py-lineno"> 82</tt>  <tt class="py-line">                <tt class="py-name">b</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt> <tt class="py-op">/</tt> <tt class="py-name">v</tt> </tt>
<a name="L83"></a><tt class="py-lineno"> 83</tt>  <tt class="py-line">                <tt class="py-name">a</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> </tt>
<a name="L84"></a><tt class="py-lineno"> 84</tt>  <tt class="py-line"> </tt>
<a name="L85"></a><tt class="py-lineno"> 85</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">a</tt> <tt class="py-op">-</tt> <tt class="py-name">b</tt> <tt class="py-op">/</tt> <tt class="py-number">2.</tt> <tt class="py-op">+</tt> <tt class="py-name">c</tt> <tt class="py-op">/</tt> <tt class="py-number">2.</tt> <tt class="py-op">+</tt> <tt class="py-name">d</tt> <tt class="py-op">/</tt> <tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-number">2</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">pi</tt><tt class="py-op">)</tt> <tt class="py-op">+</tt> <tt class="py-name">d</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> </tt>
</div><a name="L86"></a><tt class="py-lineno"> 86</tt>  <tt class="py-line"> </tt>
<a name="L87"></a><tt class="py-lineno"> 87</tt>  <tt class="py-line"> </tt>
<a name="L88"></a><tt class="py-lineno"> 88</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._train_sleep"></a><div id="GaussianRBM._train_sleep-def"><a name="L89"></a><tt class="py-lineno"> 89</tt> <a class="py-toggle" href="#" id="GaussianRBM._train_sleep-toggle" onclick="return toggle('GaussianRBM._train_sleep');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_train_sleep">_train_sleep</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">,</tt> <tt class="py-param">Y</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._train_sleep-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._train_sleep-expanded"><a name="L90"></a><tt class="py-lineno"> 90</tt>  <tt class="py-line">                <tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt> </tt>
<a name="L91"></a><tt class="py-lineno"> 91</tt>  <tt class="py-line">                <tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt><tt class="py-op">)</tt> </tt>
<a name="L92"></a><tt class="py-lineno"> 92</tt>  <tt class="py-line"> </tt>
<a name="L93"></a><tt class="py-lineno"> 93</tt>  <tt class="py-line">                <tt class="py-name">Q</tt> <tt class="py-op">=</tt> <tt class="py-number">1.</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">exp</tt><tt class="py-op">(</tt><tt class="py-op">-</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">X</tt> <tt class="py-op">/</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L94"></a><tt class="py-lineno"> 94</tt>  <tt class="py-line"> </tt>
<a name="L95"></a><tt class="py-lineno"> 95</tt>  <tt class="py-line">                <tt class="py-name">tmp1</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">multiply</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt><tt class="py-op">,</tt> <tt class="py-number">1</tt> <tt class="py-op">-</tt> <tt class="py-name">Q</tt><tt class="py-op">)</tt> </tt>
<a name="L96"></a><tt class="py-lineno"> 96</tt>  <tt class="py-line">                <tt class="py-name">tmp2</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">multiply</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">Q</tt><tt class="py-op">)</tt> </tt>
<a name="L97"></a><tt class="py-lineno"> 97</tt>  <tt class="py-line"> </tt>
<a name="L98"></a><tt class="py-lineno"> 98</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dW</tt> <tt class="py-op">=</tt> <tt class="py-name">X</tt> <tt class="py-op">*</tt> <tt class="py-op">(</tt><tt class="py-name">tmp1</tt> <tt class="py-op">+</tt> <tt class="py-name">tmp2</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">/</tt> <tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">shape</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">momentum</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dW</tt> </tt>
<a name="L99"></a><tt class="py-lineno"> 99</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dc</tt> <tt class="py-op">=</tt> <tt class="py-name">tmp1</tt><tt class="py-op">.</tt><tt class="py-name">mean</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> <tt class="py-op">+</tt> <tt class="py-name">tmp2</tt><tt class="py-op">.</tt><tt class="py-name">mean</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">momentum</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dc</tt> </tt>
<a name="L100"></a><tt class="py-lineno">100</tt>  <tt class="py-line"> </tt>
<a name="L101"></a><tt class="py-lineno">101</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">+=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dW</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">learning_rate</tt> </tt>
<a name="L102"></a><tt class="py-lineno">102</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt> <tt class="py-op">+=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dc</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">learning_rate</tt> </tt>
</div><a name="L103"></a><tt class="py-lineno">103</tt>  <tt class="py-line"> </tt>
<a name="L104"></a><tt class="py-lineno">104</tt>  <tt class="py-line"> </tt>
<a name="L105"></a><tt class="py-lineno">105</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._train_wake"></a><div id="GaussianRBM._train_wake-def"><a name="L106"></a><tt class="py-lineno">106</tt> <a class="py-toggle" href="#" id="GaussianRBM._train_wake-toggle" onclick="return toggle('GaussianRBM._train_wake');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_train_wake">_train_wake</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">,</tt> <tt class="py-param">Y</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._train_wake-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._train_wake-expanded"><a name="L107"></a><tt class="py-lineno">107</tt>  <tt class="py-line">                <tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt> </tt>
<a name="L108"></a><tt class="py-lineno">108</tt>  <tt class="py-line">                <tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt><tt class="py-op">)</tt> </tt>
<a name="L109"></a><tt class="py-lineno">109</tt>  <tt class="py-line"> </tt>
<a name="L110"></a><tt class="py-lineno">110</tt>  <tt class="py-line">                <tt class="py-name">tmp</tt> <tt class="py-op">=</tt> <tt class="py-name">X</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt> </tt>
<a name="L111"></a><tt class="py-lineno">111</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dW</tt> <tt class="py-op">=</tt> <tt class="py-name">tmp</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">/</tt> <tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">shape</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">momentum</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dW</tt> </tt>
<a name="L112"></a><tt class="py-lineno">112</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">db</tt> <tt class="py-op">=</tt> <tt class="py-name">tmp</tt><tt class="py-op">.</tt><tt class="py-name">mean</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">momentum</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">db</tt> </tt>
<a name="L113"></a><tt class="py-lineno">113</tt>  <tt class="py-line"> </tt>
<a name="L114"></a><tt class="py-lineno">114</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">+=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dW</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">learning_rate</tt> </tt>
<a name="L115"></a><tt class="py-lineno">115</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt> <tt class="py-op">+=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">db</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">learning_rate</tt> </tt>
</div><a name="L116"></a><tt class="py-lineno">116</tt>  <tt class="py-line"> </tt>
<a name="L117"></a><tt class="py-lineno">117</tt>  <tt class="py-line"> </tt>
<a name="L118"></a><tt class="py-lineno">118</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._clogprob_hid_vis"></a><div id="GaussianRBM._clogprob_hid_vis-def"><a name="L119"></a><tt class="py-lineno">119</tt> <a class="py-toggle" href="#" id="GaussianRBM._clogprob_hid_vis-toggle" onclick="return toggle('GaussianRBM._clogprob_hid_vis');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_clogprob_hid_vis">_clogprob_hid_vis</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">,</tt> <tt class="py-param">Y</tt><tt class="py-op">,</tt> <tt class="py-param">all_pairs</tt><tt class="py-op">=</tt><tt class="py-name">False</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._clogprob_hid_vis-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._clogprob_hid_vis-expanded"><a name="L120"></a><tt class="py-lineno">120</tt>  <tt class="py-line">                <tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt> </tt>
<a name="L121"></a><tt class="py-lineno">121</tt>  <tt class="py-line">                <tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt><tt class="py-op">)</tt> </tt>
<a name="L122"></a><tt class="py-lineno">122</tt>  <tt class="py-line"> </tt>
<a name="L123"></a><tt class="py-lineno">123</tt>  <tt class="py-line">                <tt class="py-name">Q</tt> <tt class="py-op">=</tt> <tt class="py-number">1.</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">exp</tt><tt class="py-op">(</tt><tt class="py-op">-</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">X</tt> <tt class="py-op">/</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L124"></a><tt class="py-lineno">124</tt>  <tt class="py-line"> </tt>
<a name="L125"></a><tt class="py-lineno">125</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">all_pairs</tt><tt class="py-op">:</tt> </tt>
<a name="L126"></a><tt class="py-lineno">126</tt>  <tt class="py-line">                        <tt class="py-name">P</tt> <tt class="py-op">=</tt> <tt class="py-number">1.</tt> <tt class="py-op">-</tt> <tt class="py-name">Q</tt> </tt>
<a name="L127"></a><tt class="py-lineno">127</tt>  <tt class="py-line">                        <tt class="py-name">P</tt><tt class="py-op">[</tt><tt class="py-name">P</tt> <tt class="py-op">==</tt> <tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">1E-320</tt> </tt>
<a name="L128"></a><tt class="py-lineno">128</tt>  <tt class="py-line">                        <tt class="py-name">Q</tt><tt class="py-op">[</tt><tt class="py-name">Q</tt> <tt class="py-op">==</tt> <tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">1E-320</tt> </tt>
<a name="L129"></a><tt class="py-lineno">129</tt>  <tt class="py-line"> </tt>
<a name="L130"></a><tt class="py-lineno">130</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-name">Q</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-name">P</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">-</tt> <tt class="py-name">Y</tt><tt class="py-op">)</tt> </tt>
<a name="L131"></a><tt class="py-lineno">131</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L132"></a><tt class="py-lineno">132</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-number">2</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">multiply</tt><tt class="py-op">(</tt><tt class="py-name">Q</tt><tt class="py-op">,</tt> <tt class="py-name">Y</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-name">Y</tt> <tt class="py-op">-</tt> <tt class="py-op">(</tt><tt class="py-name">Q</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>
</div><a name="L133"></a><tt class="py-lineno">133</tt>  <tt class="py-line"> </tt>
<a name="L134"></a><tt class="py-lineno">134</tt>  <tt class="py-line"> </tt>
<a name="L135"></a><tt class="py-lineno">135</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._clogprob_vis_hid"></a><div id="GaussianRBM._clogprob_vis_hid-def"><a name="L136"></a><tt class="py-lineno">136</tt> <a class="py-toggle" href="#" id="GaussianRBM._clogprob_vis_hid-toggle" onclick="return toggle('GaussianRBM._clogprob_vis_hid');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_clogprob_vis_hid">_clogprob_vis_hid</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">,</tt> <tt class="py-param">Y</tt><tt class="py-op">,</tt> <tt class="py-param">all_pairs</tt><tt class="py-op">=</tt><tt class="py-name">False</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._clogprob_vis_hid-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._clogprob_vis_hid-expanded"><a name="L137"></a><tt class="py-lineno">137</tt>  <tt class="py-line">                <tt class="py-name">X</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt> </tt>
<a name="L138"></a><tt class="py-lineno">138</tt>  <tt class="py-line">                <tt class="py-name">Y</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">Y</tt><tt class="py-op">)</tt> </tt>
<a name="L139"></a><tt class="py-lineno">139</tt>  <tt class="py-line"> </tt>
<a name="L140"></a><tt class="py-lineno">140</tt>  <tt class="py-line">                <tt class="py-name">S</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">*</tt> <tt class="py-name">Y</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt> </tt>
<a name="L141"></a><tt class="py-lineno">141</tt>  <tt class="py-line"> </tt>
<a name="L142"></a><tt class="py-lineno">142</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">all_pairs</tt><tt class="py-op">:</tt> </tt>
<a name="L143"></a><tt class="py-lineno">143</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-op">-</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">square</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">-</tt> <tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">S</tt> <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">square</tt><tt class="py-op">(</tt><tt class="py-name">S</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> \ </tt>
<a name="L144"></a><tt class="py-lineno">144</tt>  <tt class="py-line">                                        <tt class="py-op">-</tt> <tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">shape</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sqrt</tt><tt class="py-op">(</tt><tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">pi</tt><tt class="py-op">)</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> </tt>
<a name="L145"></a><tt class="py-lineno">145</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L146"></a><tt class="py-lineno">146</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-op">-</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">square</tt><tt class="py-op">(</tt><tt class="py-name">X</tt> <tt class="py-op">-</tt> <tt class="py-name">S</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> \ </tt>
<a name="L147"></a><tt class="py-lineno">147</tt>  <tt class="py-line">                                        <tt class="py-op">-</tt> <tt class="py-name">X</tt><tt class="py-op">.</tt><tt class="py-name">shape</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sqrt</tt><tt class="py-op">(</tt><tt class="py-number">2.</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">pi</tt><tt class="py-op">)</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> </tt>
</div><a name="L148"></a><tt class="py-lineno">148</tt>  <tt class="py-line"> </tt>
<a name="L149"></a><tt class="py-lineno">149</tt>  <tt class="py-line"> </tt>
<a name="L150"></a><tt class="py-lineno">150</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._free_energy_gradient"></a><div id="GaussianRBM._free_energy_gradient-def"><a name="L151"></a><tt class="py-lineno">151</tt> <a class="py-toggle" href="#" id="GaussianRBM._free_energy_gradient-toggle" onclick="return toggle('GaussianRBM._free_energy_gradient');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_free_energy_gradient">_free_energy_gradient</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._free_energy_gradient-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._free_energy_gradient-expanded"><a name="L152"></a><tt class="py-lineno">152</tt>  <tt class="py-line">                <tt class="py-name">Q</tt> <tt class="py-op">=</tt> <tt class="py-number">1.</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">exp</tt><tt class="py-op">(</tt><tt class="py-op">-</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">X</tt> <tt class="py-op">/</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L153"></a><tt class="py-lineno">153</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-op">(</tt><tt class="py-name">X</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">b</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">*</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt> <tt class="py-op">*</tt> <tt class="py-name">Q</tt> </tt>
</div><a name="L154"></a><tt class="py-lineno">154</tt>  <tt class="py-line"> </tt>
<a name="L155"></a><tt class="py-lineno">155</tt>  <tt class="py-line"> </tt>
<a name="L156"></a><tt class="py-lineno">156</tt>  <tt class="py-line"> </tt>
<a name="GaussianRBM._centropy_hid_vis"></a><div id="GaussianRBM._centropy_hid_vis-def"><a name="L157"></a><tt class="py-lineno">157</tt> <a class="py-toggle" href="#" id="GaussianRBM._centropy_hid_vis-toggle" onclick="return toggle('GaussianRBM._centropy_hid_vis');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="deepbelief.gaussianrbm.GaussianRBM-class.html#_centropy_hid_vis">_centropy_hid_vis</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">X</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="GaussianRBM._centropy_hid_vis-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="GaussianRBM._centropy_hid_vis-expanded"><a name="L158"></a><tt class="py-lineno">158</tt>  <tt class="py-line">                <tt class="py-comment"># compute conditional probabilities of hidden units being active</tt> </tt>
<a name="L159"></a><tt class="py-lineno">159</tt>  <tt class="py-line">                <tt class="py-name">Q</tt> <tt class="py-op">=</tt> <tt class="py-number">1.</tt> <tt class="py-op">/</tt> <tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">+</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">exp</tt><tt class="py-op">(</tt><tt class="py-op">-</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">W</tt><tt class="py-op">.</tt><tt class="py-name">T</tt> <tt class="py-op">*</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">asmatrix</tt><tt class="py-op">(</tt><tt class="py-name">X</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sigma</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">c</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L160"></a><tt class="py-lineno">160</tt>  <tt class="py-line"> </tt>
<a name="L161"></a><tt class="py-lineno">161</tt>  <tt class="py-line">                <tt class="py-name">A</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">multiply</tt><tt class="py-op">(</tt><tt class="py-name">Q</tt><tt class="py-op">,</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-name">Q</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L162"></a><tt class="py-lineno">162</tt>  <tt class="py-line">                <tt class="py-name">B</tt> <tt class="py-op">=</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">multiply</tt><tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">-</tt> <tt class="py-name">Q</tt><tt class="py-op">,</tt> <tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">log</tt><tt class="py-op">(</tt><tt class="py-number">1.</tt> <tt class="py-op">-</tt> <tt class="py-name">Q</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L163"></a><tt class="py-lineno">163</tt>  <tt class="py-line"> </tt>
<a name="L164"></a><tt class="py-lineno">164</tt>  <tt class="py-line">                <tt class="py-comment"># zero times infinity gives zero</tt> </tt>
<a name="L165"></a><tt class="py-lineno">165</tt>  <tt class="py-line">                <tt class="py-name">A</tt><tt class="py-op">[</tt><tt class="py-name">Q</tt> <tt class="py-op">==</tt> <tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L166"></a><tt class="py-lineno">166</tt>  <tt class="py-line">                <tt class="py-name">B</tt><tt class="py-op">[</tt><tt class="py-name">Q</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L167"></a><tt class="py-lineno">167</tt>  <tt class="py-line"> </tt>
<a name="L168"></a><tt class="py-lineno">168</tt>  <tt class="py-line">                <tt class="py-comment"># integrate</tt> </tt>
<a name="L169"></a><tt class="py-lineno">169</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-op">-</tt><tt class="py-name">np</tt><tt class="py-op">.</tt><tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">A</tt> <tt class="py-op">+</tt> <tt class="py-name">B</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>
</div></div><a name="L170"></a><tt class="py-lineno">170</tt>  <tt class="py-line"> </tt><script type="text/javascript">
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